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Robert · 04-25-2002, 07:06 AM

okay, since nobody solved the coin riddle .. I'll post solution here

So you need only 2 tries!

Heres how you do it.

1st try: take 6 coins and put 3 on each side. If it balances out even, the counterfit coin is in the other triad. Otherwise the counterfit is in the heavier triad.

2nd try: Now you have 3 coins and one of them is surely counterfit. So you take 2 coins and put 1 on each side.

Now you can determine the counterfit coin.
it is heavier. And if it balances out even, the counterfit coin is the third

Easy, isnt it?

04-25-2002, 07:06 AM
Robert Ask me about negative cash flow Join Date: Feb 2001 Posts: 533	okay, since nobody solved the coin riddle .. I'll post solution here So you need only 2 tries! Heres how you do it. 1st try: take 6 coins and put 3 on each side. If it balances out even, the counterfit coin is in the other triad. Otherwise the counterfit is in the heavier triad. 2nd try: Now you have 3 coins and one of them is surely counterfit. So you take 2 coins and put 1 on each side. Now you can determine the counterfit coin. it is heavier. And if it balances out even, the counterfit coin is the third Easy, isnt it? __________________ SIG TOO BIG! Maximum 120x60 button and no more than 3 text lines of DEFAULT SIZE and COLOR. Unless your sig is for a GFY top banner sponsor, then you may use a 624x80 instead of a 120x60.